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Interdigital Filters

This is an inheritantly bandpass filter created from an array of mutually coupled lines. The design can vary from a bunch of circular TEM lines in a box to a planar design of coupled lines on microstrip. This is the microstrip approach.

Interdigital Diagram

Design Specification

Enter the design parameters

Note:

Aim to get the track width - spacing ratio for a Zeven, Zodd either side of Zo

For zero loss set thickness = 0

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